Question

If the midpoint the line joining the co-ordinates A[4, -3] and B[a, b] is the origin, then the values a and b are.​

Answer 1

Answer:

Here is your answer

Step-by-step explanation:

Given = A(4, -3) and B( a, b)  also origin = 0,0

Midpoint formula = (x 1 + x 2 ÷ 2) ; ( y 2 + y1 ÷ 2 )

                           

x( 0, 0 ) = [ 4 + a ÷ 2 ]  ;  [ -3 + b ÷ 2 ]

4 + a ÷ 2 = 0 ;  -3 + b ÷ 2 = 0

4 + a  = 0 ;  -3 + b  = 0 { anything multiplied into 0 = 0 }

a = - 4 ; b = -3